Tedlar Air Sample Bags are made from classic DuPont film - the industry standard - with good stability for VOCs, sulfur compounds, carbon monoxide, carbon dioxide, methane, and sulfur hexafluoride. Use PTFE tubing to attach a dual stainless steel or single polypropylene fitting on the bag to a Grab Air or Pocket Pump TOUCH. DOES NOT ship to Alaska, Arizona, California, Colorado, Hawaii, Idaho, Nevada, Oregon, Utah, Washington. Wyoming”